Abstract: A method for optimizing clear channel assessment (CCA) parameters in a wireless local area network having an access point (AP) and at least one station begins by receiving a trigger condition. An upper bound and a lower bound for an energy detect threshold (EDT) parameter are determined. A value of the EDT parameter is calculated and is bound by the upper bound and the lower bound. Lastly, the EDT parameter is updated. The method can be performed at each station or at the AP, with the updated CCA parameters being signaled to each station associated with the AP.

Abstract: A method for accelerating discovery of access points (APs) in a wireless local area network begins by transmitting an advertisement packet by an AP via at least one channel other than a channel on which the AP transmits beacon signals. The advertisement packet is received by a station (STA), which then determines whether to associate to the transmitting AP. The advertisement packet can include reassociation information, such that the STA can associate to the AP based on the information in the advertisement packet, or timing information, such that the STA can tune to the AP and receive the AP's beacon without dwelling on the AP for an extended period of time.

Abstract: Methods and apparatus are disclosed to facilitate wireless communications between a wireless transmit receive unit (WTRU), legacy base stations and base stations using different operating parameters, such as evolved high speed packet access (HSPA) systems Third Generation Partnership Project ((3GPP) Release 7, Release 8 and beyond). Preferred WTRUs are configured with a medium access control (MAC) sub-layer component having a subcomponent with HARQ buffers, such as a subcomponent configured to provide MAC-es and MAC-e functionality and/or MAC-is and MACi functionality that include hybrid automatic repeat request (HARQ) processes, some of which are preferably operable with enhanced dedicated transport channels (E-DCH). The WTRUs are preferably configured such that they reconfigure their MAC subcomponents during soft handover while minimizing induced latency and data losses associated with HARQ processes.

Abstract: The invention relates to an elastic substantially tubular package for a semi-liquid or pasty extractable by a finger pressure product comprising a skirt, a head and optionally a cap, wherein said skirt is formed from a wound foil and is provided with a longitudinal weld seam formed by the overlapping of the edges thereof and the head is fixed to the circumference of the skirt end and forms an oval cross-section at the level of the skirt fixing area. The inventive package is characterised in that the end of the longitudinal weld seam contacting the head is located in or near an area where the radius of curvature of the oval cross-section is minimal.

Abstract: The present invention is related to a method and apparatus for providing service availability information to a user in a wireless communication system. After receiving a beacon signal from a base station, a WTRU measures a power level and an interference level of the beacon signal. A target SIR and a power offset for each service is pre-defined and stored in a memory of the WTRU. A processor calculates an estimated SIR for each service, and generates a service availability indicator by dividing the estimated SIR with a target SIR for each service. A user is informed of the availability of various services simply by looking at the display of the WTRU.

Abstract: A method and apparatus for transmitting and receiving a packet via high speed downlink packet access (HSDPA) are disclosed. At least one HSDPA medium access control (MAC-hs) service data unit (SDU) is segmented into a plurality of segments. MAC-hs protocol data units (PDUs) are generated from the segments wherein each MAC-hs PDU includes at least one segment. Each MAC-hs PDU may include one segment from a single MAC-hs SDU. The size of the segments may match to the size of the MAC-hs PDUs minus the size of the header of the MAC-hs PDU. The sizes of the segments may be determined based on the number of segments to which the MAC-hs SDU is segmented. Alternatively, each MAC-hs PDU may include a combination of segments from a plurality of MAC-hs SDUs or a combination of at least one segment from one MAC-hs SDU and at least one entire MAC-hs SDU.

Abstract: A method for implementing a smart antenna in establishing association between a station (STA) and an access point (AP) in a wireless local area network begins by transmitting a beacon frame by the AP on one antenna beam. The beacon frame is received at the STA, which measures the signal quality of the beacon frame. The AP switches to a different antenna beam and repeats the method until the beacon frame has been transmitted on all antenna beams. The STA associates to the AP that transmits the beacon frame with the highest signal quality on one of its antenna beams. A similar method may be used in which the STA sends a probe request frame to the AP, which then responds with probe response frames sent on multiple antenna beams.

Abstract: A method and apparatus for assigning radio resources and controlling parameters for transmission over a random access channel in wireless communications by enhancing a random access channel is disclosed.

Abstract: A method and apparatus for sending a channel quality indication (CQI) via a shared channel while a wireless transmit/receive unit (WTRU) is in a Cell_FACH state without having a dedicated channel allocated for the WTRU are disclosed. A WTRU performs a measurement of at least one parameter and generates a CQI based on the measurement. The WTRU then transmits the CQI via a random access channel (RACH). The CQI may be transmitted using an RACH preamble. A plurality of signature sequences may be divided into a plurality of groups. The WTRU may select one group based on the CQI and randomly select a signature sequence among signature sequences in the selected group for transmitting the RACH preamble. The CQI may be appended to the RACH preamble. The CQI may be transmitted via a control part or a data part of the RACH message.

Abstract: A method and apparatus which determine the minimum transmission power level of an access point (AP) for reliably communicating with at least one wireless transmit/receive unit (WTRU) in a wireless communication system. The apparatus obtains the range of the AP and estimates the interference to the AP by executing a slow interference estimation process and a fast interference estimation process. A required received power (RRP) of the WTRU is obtained from the interference estimate. The minimum transmission power level of the AP is determined by summing the range of the AP and the RRP.

Abstract: A method and apparatus for signaling information indicating performance requirements that a WTRU commits to satisfying from the WTRU to permit a more efficient allocation of radio resources and increase network capacity. The WTRU may signal information to the base station that includes performance requirements that the WTRU commits to satisfying, that includes a code or a field associated with at least one performance requirement. In another embodiment, the signaled information indicates a change in performance requirements committed to by the WTRU. In yet another embodiment, the WTRU signals channel quality measurements, such as channel quality indicator (CQI) report messages, to the base station, which in turn infers certain information regarding receiver performance based on the channel quality measurements.

Abstract: A method and apparatus which determine the minimum transmission power level of an access point (AP) for reliably communicating with at least one wireless transmit/receive unit (WTRU) in a wireless communication system. The apparatus obtains the range of the AP and estimates the interference to the AP by executing a slow interference estimation process and a fast interference estimation process. A required received power (RRP) of the WTRU is obtained from the interference estimate. The minimum transmission power level of the AP is determined by summing the range of the AP and the RRP.

Abstract: The invention relates to a method for manufacturing a plastic container, comprising the edge-clamping of a flat, flexible piece forming a curved surface over the inner face of a hollow body, characterized in that the following steps are performed: the edge of the piece is placed in contact with the inner face of the hollow body; a thrust or tensile force is applied to the piece in a direction perpendicular to its surface such as to induce in the piece radial forces resulting in a bringing-together of the edge of the piece against the inner face of the hollow body.

Abstract: A multilayer dose having an axis of symmetry for the realization of multilayer objects by compression molding, constituted by a first synthetic resin and by a fine functional layer 3 imprisoned in said first resin, said layer 3 representing less than 20% of the volume of the dose, the multilayer dose being characterized in that the layer 3 forms the shell of a body of revolution about the axis of symmetry and in that the distance from the layer to the axis of symmetry is variable.

Abstract: A chain guide for guiding a chain within a chain hoist. The chain guide includes a substantially elongated body having an inner side and an outer side, along with first and second extremities. The substantially elongated body is made of a substantially flexible material for curving the substantially elongated body into a substantially arched configuration about a given wheel of the chain hoist. The chain guide also includes first and second chain receiving portions provided adjacent to the first and second extremities respectively of the substantially elongated body, on the inner side thereof. Each chain receiving portion comprises a pair of shoulders protruding from the inner side of the body and defining an open channel shaped and sized for slidably receiving a portion of the chain. The chain guide also includes a deformable connecting portion for interconnecting the first and second chain receiving portions of the chain guide. Also described is a chain hoist provided with the chain guide.

Abstract: A method and system for autonomous channel coordination for a wireless distribution system (WDS) are disclosed. A wireless communication system includes a plurality of access points (APs) and the APs communicate each other via a WDS. A coordinated channel group (CCG) of a plurality of member APs is established. The member APs of the CCG camp on a WDS channel used for the WDS among the member APs of the CCG. One AP among the member APs of the CCG is designated as a master AP. The master AP coordinates with other member APs of the CCG for selecting and configuring the WDS channel for the CCG and addition and deletion of member APs. By allowing APs to define a CCG, changes of the WDS channel are performed autonomously while maintaining connectivity.

Abstract: A method and system for performing peer-to-peer wireless communication between stations (STAs) within a basic service set (BSS) while maintaining connectivity with an access point (AP) in the BSS are disclosed. A source STA, an AP and a destination STA negotiate a direct link setup (DLS) channel for performing peer-to-peer communication between the source STA and the destination STA. The DLS channel may be different from a BSS channel used for communication between the AP and each of the STAs. The source STA and the destination STA then perform peer-to-peer communication on the negotiated DLS channel.

Abstract: A method and apparatus for exchanging messages via a wireless distribution system (WDS) between groups operating on different frequencies are disclosed. A wireless communication system includes a plurality of wireless transmit/receive units (WTRUs) and a plurality of basic service sets (BSSs). At least one WTRU belongs to each BSS. A source WTRU desiring to send a WDS packet to a destination WTRU in another BSS sends an availability notification (AN) message to WTRUs which the source WTRU is associated with to indicate that the source WTRU will not be available to receive data. The source WTRU then accesses a channel on which the destination WTRU camps and sends a packet to the destination WTRU. After transmission of the packet, or receiving an acknowledgement from the destination WTRU, the source WTRU reverts back to the original channel.

Abstract: A method and apparatus for implementing a blind seamless channel change (BSCC) when at least one of a plurality of wireless communication devices is jammed on a current communication channel includes the first wireless communication device transmitting a BSCC message on the current communication channel to a second wireless communication device that includes information relating to a communication channel selected from a plurality of available communication channels that the first wireless communication device is switching to next, and a time period when the first wireless communication device will be transmitting on the selected communication channel. The first wireless communication device switches to the selected communication channel. The second wireless communication device receives the BSCC message and switches to the selected communication channel. The first and second wireless communication devices resume normal wireless communication.

Abstract: In a wireless communication system having smart antennas and comprising a plurality of wireless transmit/receive units (WTRUs), a method and apparatus for transmitting and receiving data comprises a first WTRU transmitting a request for antenna (RFA) frame to a second WTRU. The second WTRU receives the RFA frame and determines a preferred antenna to receive a dataframe transmission. The first WTRU transmits the dataframe on the preferred antenna.